Winding device for droplights



' P ebl 13, I c. v. JOHNSON WINDING DEVICE FOR DRQPLIGHTS Q Filed se a 25, 1918 2 sheets-sheet 1 IIVI/E/VTOR azu'l VJoYuwon.

A nomvsr Feb. 13, 1923.

C. v. JOHNSON WINDING DEVICE FOR- DROPLIGHTS Filed Sept? 25, 1918 2,,sheets-sheet 2 mmvron CarZ VJoYuwon.

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Patented Feb. 13, 192&

UNETED than? CARL v. JOHNSON, or SAN rnANcrsco, CALIFORNIA, ASSIGNOR 'ro INDIsrENsABLn MANUFACTURING COMPANY, or nENo, NEVADA, a CORPORATION or NEVADA.

WINDING DEVICE FOR DBOIPLIGHTS- Application filed September 25, 1918. Serial No. 255,721.

T 0 all whom it may concern Be it known that I, CARL V. JoHNsoN, a

citizen of the United States and a resident of San Francisco in the county of San Francisco and State of California, have invented a new and Improved WVinding Device for Droplights, of which the following is a description.

My invention is particularly adapted for drop lights employed. in garages, although the invention is capable of wider use. The general object of the invention is toprovide a winding device of the indicated char acter improved in various particulars with reference to simplicity of construction and with a view to promote convenience in as sembling the parts as well as to facilitate adjustment and operation. v

More specifically the invention has in view the provision of simple supporting means of a character to make the complete device readily portable and adapted to be hung up in a particular locality when it is needed. 1

A further object is to provide ,a guide for the conductor cord and so arranged as to effectively guide and guard the cord in all directions in its movements into and from the casing of the winding mechanism.

Also, an important object is to provide a novel arrangement of the framework and easing of the winding device whereby not only is the maximum strength obtained in the frame by few elements of simple form but whereby casing covers provided at opposite sides are made readily detachable for examination or adjustment of interior parts, and the covers when in place are firmly secured to the framework and are made removable without disturbing the frame parts or casing.

The manner in which the above and other objects are attained will appear from the specific description following.

Reference is to be had to'the accompanying drawings forming a part of this specification. it being understood that the; drawin s are merely illustrative of one example of the invention.

Figure 1 is a sectional view of the casing,

re ine.

Figure 3 is a side elevation of the suppor- 7 ed winding device;

Figure 4: is a detail in transverse vertical section on the line 4.4i, Figure 5, the view being given to show the collector rings;

Figure 5 is a horizontal sectionon the line 55, Figure 4:; p I

Figure 6 is a fragmentary face view showing the guide pulleys .for the conductor cord; Figure 7 is a side elevation of the supported winding device showing a modification of the supporting means.

In carrying out my invention in accordance with the illustrated example, a cylindrical casing body 10 is provided to accommodate the winding mechanism and the controlling means therefor. Within the casing is a frame designated generally by the nu? meral l1, and including side bars 12 centrally offset for their major portion. The ends 18 of the side bars 12 overlap the side arms of upper and lower U-shaped frame members 14 which are secured to the overlapping ends 13 by screws 15 or other fastening means.

The cylindrical casing body 10 has a removable cover 16 at each side to afford ready access to the interior parts and the offset side bars 12 of the frame lie in vertical planes for bracing the cover 16 to which said side bars are secured by screws 17 or equivalent means. It will thus be seen that the side bars of the frame afford a substantial brace and support for the removable covers and that the removal of the latter in no way disturbs the frame parts or the interior mechanism supported thereby, and in no way disturbs the casing body as will appear The cylindrical body of casing 10 is secured to the frame 11 by screws 18 engaging the top and bottom U-shaped frame members 14: and these screws 18 or any equivalent fasteners employed for thepurpose are utilized in the form shown in Figures 1 to 3, for securing the winding device to theupper. and lower arms 19 of the U- shaped yoke 20 which is formed with upper and lower pivot pins 21 of L-shape,the ends .ofthe pins being both disposed downwardly to be received in alined holes in a face bracket 22 on a wall A of a garage or other structure, it being understood thatin practice a series of brackets 22 may be. disposed about a room and that the yoke 20 can be detached from any particular bracket iials 36, 37 of the conductor cu aged with another in articular locality u'liere light is desired, the yole serving as a convenient means to facilitate the carrying of the Winding device. In the form shown in Figure '7 bolts? are passed through the casing body 10 and top and bottom members of the frame ll and directly through a fixed bracket 22 secured to the wall A. Thus, in the form shown in Figure '3, the Winding device swings on the bracket 22 with the pins 21 as a center, Whereas in {Figure 7 the cats ing and frame turn about the axis of the top and bottom bolts 2?, the former construction being preferred.

A winding drum 23 is pro ."ided, arranged to wind flexible conductor cord thereon in one plane, that is, in the form of a flat coil. Said drum turns with an axle 2 supported ends in the offset side bars 12 L of he me and in an additional franc bar 26 secured to one frame bar-l2 and bridging the offset portion thereof The cord 25 e3;-

. tends from the groove of the Winding drum through an opening 27 in side of the cylindrical casing body 10 below the ZLXlS of rotation of the drum. The proper guiding of the cord 25 into and out of the casing in the raising and lowering of the lamp C carried by the cord, is an important f: etor in promotin convenience in the use of a Winding d e of this character and to insure against binding of the Wire the lamp is carried in different directions from the position of the Winding device. l effect a guiding and guarding of the cord in all directions in its movements through the opening 27 in a very simple manner through the medirni of a pair of grooved pulleys 28 between which the cord passe These pulleys are journaled in similar angle plates 29, said plates in one flange thereof forming bearings for the pulleys 28 while the other iianges of the angle plates heat the interior of the casing body 10 and are secured by bolts 30 and nuts 31. The angle plates, it will be seen, involve a minimum expense and can be easily secured in position, and with the pulleys 28 provide an effective cord guide.

The checks 'or side plates of the drum 23 have notches 32 adapted to receive the free end of a gravity lock pivoted to the frame 11 at the-top, the look permitting the t i'ngof the drum in one direction by pill on the cord 25 and permitting a reverse movement of the drum Winding except When the drum is slowed up to permit the lock to enter a notch 32. V I

The conductor Wires of the cord extend through an opening 34 in a side of the drum 23, the opening extending also through an insulating disk 35 and the respective termi- Wires are secured to binding posts on collector rings 38, 89 engaged by brushes 4,-0, e1 to connect the conductor Wires in circuit with the supply syssleeve on the axle Ql.

forms an important factor in simplifying in improved winding device and facilitat ing the making of the electrical connections. The two collector rings 38, 39 are insulated from each other by a disk 42, said disk having a. hub 4-3, the flange or disk proper of which has secured thereto the one ring 39, while the other ring 38 is made up of ring parts at opposite faces of the hub 43 and. secured to each other and to said hub by screws dilor the like. The respective collector rings 88, 39 have ears: 45, 1-6 carrying the binding posts for the conductor terminals. By the described arrangement the collector ring-assembly constitutes a rigid unit having a throughbore to be fitted on an insulator 7 Conductor Wires as extend from a ceiling support B or other socket or the like leading from the supply system and enter the casing body 10 through an insulator bushing i9, the respective conductors being secured to brushes 40, ll in the present example through the medium of bracket arms 52, said brushes and brackets being carried by an insulating plate 53 secured to a depending end l l of one of the arms of the upper Ushaped frame members 14;.

The coil spring 5% to turn the axle 2A- and drum is disposed in the frame at the opposite side of the drum from the brushes and collector rings between. the frame bar 236 and the adjacent offset side bar 12.

I would state in conclusion that While the illustrated example constitutes a practical embodiment of my invention, 1 do not limit myself strictly to the mechanical details. herein illustrated, since manifestly the same can be considerably varied Without departure from the spirit of the invention as defined in. the appended. claims, I

Having thus described my invention, 1' claim as new, and desire to secure by Letters Patent:

1. A drop light mechanism including a frame presenting side bars having offset portions and end nieu'ibers joining said side bars, a casing body secured to the end mem hers of the frame. separate covers for the opposite sides of the casing body and lying against the offset portions of the side bars, means detach ably securing the covers to the side bars, a Windin drum revolubly sup V porting means, means detaohably fastening adapted to carry a drop light, means tending to turn the drum in a direction to wind said conductor cord, and means to connect the wires of said conductor cord with a source of electricity.

3. drop light mechanism including a winding drum, an axle carrying the said drum, a conductor cord on said drum and adapted to carry a drop light, a collector unit on said axle and connected with said cord, and brushes engaging said unit and adapted to be connected with a source of electricity, said unit comprising an insulator disk having a hub, a metal collector ring fixed on said disk outside of the hub and engaged by one brush, a second collector ring composed of two ring elements respectively on opposite faces of the hub and rigid with the latter and with each other, one of said ring elements being engaged by the other brush, and means connecting the respective collector rings with the wires of said conductor cord.

4. A drop light mechanism including a casing body, a frame within said body, a conductor cord extendin into the body, winding mechanism for said conductor cord,

said casing, and means atthe same time se-I curing the casing body and the frame to said supporting means and to each other. 5. A drop light mechanism including a casing body, winding means within said casing body, a frame within said casing body, a cover at aside of the casing and detachably secured to the frame at a side thereof, external supporting means, and means passing through the casing body and securing said supporting means to the frame independently of the securing means for the de tachable cover. v i

6. A drop light mechanism including a casing body, winding means within said casing body, a frame within said casing body, an-external supporting bracket, means extending through said casing body and securing said bracket to said frame and serving also to secure the casing body to the having means to engage the same with a" support.

CARL JOHNSON.

lVitne'sses M. H. DANNENBERG, MAY JOHNSON. 

